In the UK we have a playground game called British Bulldog, where you have to run from one safe zone to another without being caught by the 'bulldog.'

The genius of the game is its inclusiveness. Little guys could use their speed and low centre of gravity to evade capture, strong lumbering sorts could palm off any bulldogs, while even the slow and weak could survive through using their wits and their environment to their advantage.

Gravity Guy, despite his macho name and heroic costume, is just such a resourceful wimp. Having escaped a futuristic prison, he must evade his robotic pursuers through the decidedly retro method of running away.